style.css

body {
    margin: 0;
    padding: 0;
    background-color: black;
    color: white;
    overflow: hidden;
}

#canvas {
    width: 100vw;
    height: 100vh;
    background-color: black;
}

#time-input {
    width: 40vw;
    height: 100%;
    border-radius: 5px;
    margin: 5px;
    padding: 0;
}

#label {
    display: flex;
    justify-content: space-between;
    width: 100%;
    height: 20px;
}

#timeline {
    display: flex;
    align-items: center;
    flex-direction: column;
    width: fit-content;
    position: absolute;
    top: 20px;
    left: 10px;
    text-align: center;
    background-color: rgba(255, 255, 255, 0.2);
    padding: 5px;
}

button {
    border-radius: 5px;
    padding: 5px;
    border: none;
}

button:hover {
    filter: brightness(110%);
    cursor: pointer;
}

#toggler {
    position: absolute;
    bottom: 0;
    right: 0;
    padding: 5px;
    background-color: rgba(255, 255, 255, 0.2);
}

#start #toggler button {
    margin: 3px;
}

.container {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-evenly;
}

.btnn {
    top: 130px;
    right: 0;
}